- ADecreases by 37.6%37.6% की कमी
- BIncreases by 39.74%39.74% की वृद्धि
- CDecreases by 40.94%40.94% की कमी
- DIncreases by 36.35%36.35% की वृद्धि
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Concept: Successive changes multiply: final = original × product of multiplying factors.
- Factors: 0.8, 0.65, 0.8 and 1.5.
- .
- Price is 62.4% of original → net fall of 37.6%.
Trick: Pair first (easy), then – avoids messy fractions.
Answer: (A) Decreases by 37.6%
अवधारणा: क्रमिक बदलाव गुणा होते हैं: अंतिम = मूल × सभी गुणकों का गुणनफल।
- गुणक: 0.8, 0.65, 0.8 और 1.5।
- ।
- कीमत मूल की 62.4% रह गई → कुल 37.6% कमी।
ट्रिक: पहले निकालें, फिर – गणना आसान।
उत्तर: (A) 37.6% की कमी
